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The proton electromagnetic form factorF 2 and quark orbital angular momentum

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Abstract

We analyse the proton electromagnetic form factor ratioR(Q 2) =QF 2 (Q 2)/F 1 (Q 2) as a function of momentum transferQ 2 within perturbative QCD. We find that the prediction for (R(Q 2) at large momentum transferQ depends on the exclusive quark wave functions, which are unknown. For a wide range of wave functions we find thatQF 2 F 1 ∼ const. at large momentum transfer, which is in agreement with recent JLAB data.

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Authors and Affiliations

  1. Physics Department, Indian Institute of Technology, 208 016, Kanpur, India

    Pankaj Jain

  2. Department of Physics and Astronomy, University of Kansas, 66045, Lawrence, KS, USA

    John P. Ralston

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  1. Pankaj Jain
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  2. John P. Ralston
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Jain, P., Ralston, J.P. The proton electromagnetic form factorF 2 and quark orbital angular momentum. Pramana - J Phys 61, 987–992 (2003). https://doi.org/10.1007/BF02704468

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